It depends on how intense the workout is for me. Did I just completely exhaust myself? Then no, I can't really think on that level. Did I just do a light to mod

It depends on how intense the workout is for me. Did I just completely exhaust myself? Then no, I can't really think on that level. Did I just do a light to moderate workout? Sure, I can code and perhaps even better than before. I also find that my hydration + carb levels prior to workouts matter immensely. If I'm somewhat dehydrated and I do a heavy cardio session, I'm a mess afterwards - I can't focus, can't think. Same with carbs - if I am carb depleted, I'm just no good. Protein after a workout always seems to help me recover faster.